Presentation by Sourav Datta - Sunday, 13 December 2020, 1:43 PM Number of replies: 3 My presentation was about heavy metal pollution. This pollution effect our environment and our human health also. Permalink In reply to Sourav Datta Re: Presentation by Meharab Mosharrof - Sunday, 13 December 2020, 3:32 PM My presentation topic was great Permalink Show parent In reply to Sourav Datta Re: Presentation by md.abu- sayed - Friday, 18 December 2020, 10:32 PM My presentation topic was great Permalink Show parent In reply to Sourav Datta Re: Presentation by md.naeem md.naeem - Sunday, 20 December 2020, 1:24 PM Nice presentation Permalink Show parent
In reply to Sourav Datta Re: Presentation by Meharab Mosharrof - Sunday, 13 December 2020, 3:32 PM My presentation topic was great Permalink Show parent
In reply to Sourav Datta Re: Presentation by md.abu- sayed - Friday, 18 December 2020, 10:32 PM My presentation topic was great Permalink Show parent
In reply to Sourav Datta Re: Presentation by md.naeem md.naeem - Sunday, 20 December 2020, 1:24 PM Nice presentation Permalink Show parent